Mactat2 Posted October 15, 2022 Share Posted October 15, 2022 (edited) Hi Guys, just bought a 2007 A3 1.9TDI 140k on the clock and full service history. When you start it you get a hissing from the drivers foot well. Guessing a vacuum leak? it hiss's until you press the brake then it stops, release the brake and it starts again. Brakes work fine, anyone know what could i should be checking? Thanks Edited October 15, 2022 by Mactat2 Quote Link to comment Share on other sites More sharing options...
Steve Q Posted October 15, 2022 Share Posted October 15, 2022 Could it be the brake servo?. Quote Link to comment Share on other sites More sharing options...
Mactat2 Posted October 16, 2022 Author Share Posted October 16, 2022 its certainly in the right area. Ill have a look tomorrow evening. Was just wondering if theres anything common that usually causes it? Thanks Steve Quote Link to comment Share on other sites More sharing options...
Steve Q Posted October 22, 2022 Share Posted October 22, 2022 On 10/16/2022 at 7:35 PM, Mactat2 said: its certainly in the right area. Ill have a look tomorrow evening. Was just wondering if theres anything common that usually causes it? Thanks Steve No probs at all. Did you get to the bottom of it? Quote Link to comment Share on other sites More sharing options...
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